Rename Repaint to Paint Invalidation Part 4

This CL renames the remaining methods in RenderObject which used repaint to
be paint invalidation.

BUG=338691

Review URL: https://codereview.chromium.org/332543002

git-svn-id: svn://svn.chromium.org/blink/trunk@176033 bbb929c8-8fbe-4397-9dbb-9b2b20218538